64859125 has 16 divisors (see below), whose sum is σ = 81317808. Its totient is φ = 51648000.

The previous prime is 64859117. The next prime is 64859159. The reversal of 64859125 is 52195846.

It can be written as a sum of positive squares in 8 ways, for example, as 28751044 + 36108081 = 5362^2 + 6009^2 .

It is not a de Polignac number, because 64859125 - 2³ = 64859117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29049 + ... + 31201.

It is an arithmetic number, because the mean of its divisors is an integer number (5082363).

Almost surely, 2^64859125 is an apocalyptic number.

It is an amenable number.

64859125 is a deficient number, since it is larger than the sum of its proper divisors (16458683).

64859125 is a wasteful number, since it uses less digits than its factorization.

64859125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2399 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 64859125 is about 8053.5163127667. The cubic root of 64859125 is about 401.7818940965.

The spelling of 64859125 in words is "sixty-four million, eight hundred fifty-nine thousand, one hundred twenty-five".